Concrete form



M. MICKELSON CONCRETE FORM Fi1ed-Aug. 12, 1925 Nov. 24

y d M M "y i M. MICKELSON Nov. 24, 1925- coNcRETE ffoRM Filed Aug. l2, 1925 2 Sheets-Sheet 2 alto: muy

Patented Nov. 24, 1925.

UNITED STATES MARIUS MICKELSOIM', 0F THATCHER, ARIZONA.

CONCRETE FORM.

' i Application filed August l12, 1925. Serial No. 49,786.

To c/ZZ 107mm z'z may concern.'

Bc it known that l, Manins MmKnLsoN, a itizen of the United States, residing at Thatcher. in the county of Graham and State of Arizona, have invented a new and useful Concrete Form7 of which the follow-l ing is a specification.

rllhis invention relates to a form for use primarily in the construction of concrete head gates such as used in irrigation systems. Y

It is an object of the present invention to provide a means whereby the head gates can be formed at lower cost than has heretofore been possible by the use of a simplified form which can be set up quickly and which is adjustable to meet the requirements.

A further object is to provide a form which, when not in use, can be collapsed readily so as to be conveniently stored or transported.

l/Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in` the details of construction hereinafter described and claimed, it being understood that 'changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings,

Figure 1 is a perspective view ot a head gate suchas produced by the form consti! tuting the present invention.

Figure 2 is a vertical transverse section showing the form in position during the construction of the head gate.

Figure 3 is a perspective view of two of the members of the form, the same being shown spaced apart.

Figure 4 is a vertical longitudinal section through the form when set up for use.

Figure 5 is a plan view of the form, a portion being broken away.

Referring to the figures by characters of reference 1 designates a wall member of the form provided at the top and bottom with longitudinal flanges 2 and at one end with an inwardly extending fiange 3 connecting the flanges 2. The other end of this wall member is offset laterally to provide an angular extension 4 extending from top to bottom of the form. This angular extension is designed to receive a similar laterally projecting extension 5 formed upon one end or another wall member f3 similar to the member 1 and also provided with top and bottom flanges 7 and with an end flange 8 connecting the flanges 7. The fianges 2 and 7 eX- tend across the ends of the extensions 4 and 5 and have a coupling rod 9 extending down- .vardly through them so as to hold the wall members 1 and 6 assembled with their inner faces in alinement.

Cross strips or braces 10 are engaged by the rods 9 and bridge the space between the opposed form members. These cross strips or braces are adjustable longitudinally because of the fact that each of them is made up of two lapping strips provided with longitudinal series of apertures 11. Bolts 12 are insertable through certain of these aper' tures after the strips have been adjusted longitudinally to hold the opposed forni members at the desired distance apart. Additional cross strips or braces 13 similar to the braces 10 are mounted upon the upper and lower portions of the sides of the form close to the ends of said form, these cross strips or braces being held to the form by rods 14k-extending downwardly thereto and through the flanges 2 and 7. The cross strips or braces 13 are also formed of two pieces adjustably connected by means of bolt 15 extending through apertures 16.

Slots 17 are formed in the Bauges 3 and 8 and are adapted to receive angular tongues 18 extending from box-like wings 19 located Y adjacent the end of the form. The wings at one end ofthe form can be held at a desired angle to the side walls of the form by cross strips or braces 2O similar to the strips or braces 10 and 13 which are connected tothe wings 19 by rods 21 extending` downwardly through the braces and through the top and bottom flanges of the wings. lf preferred, however, the wings can be held at desired angles by means of braces 22 pivotally connected to them and having feet 23 adapted to engage the ground as shown particularly in Figures 4. and 5.

In using this forni the same is set up in the ditch D with the connected side walls spaced from the walls of the ditch. The wings 19 are then coupled to the side walls and swung laterally so as to come against these positions by the cross strips 20 and lit) braces 2:2 as shown in Figure 5. Concrete is then poured intothe spaces `between the side walls of the form and the walls of the ditch so as to completely fill this space 'between the wings 19. It might be `stated that when the form is set up different rods 9, 14 and 2i are of sufficient length to extend downwardly into the soil as shown particularly in Figure 2, thus to prevent the forms 'from shifting out of the positions in which they have been placed.

After the concrete has set the forms can be taken apart and removed thus leaving opposed concrete lwalls lV having channels C therein for the reception of a gate G. Disk 8 is arranged vertically where the water is to be measured but should it be desired to have the gate in an inclined position, it is only necessary to so shape the side lmembers of the form that `the oi'set portions will be inclined instead of vertical. Such a construction is so obvious that it is not deemed necessary to describe or illus.- trate the same in detail.

That is claimed is:

1. A form off the class described including opposed members arranged in pairs, the members of each pair constituting a side wall of the form, each of said members having an offset end portion, said offset portions interiitting, rods extending. downwardlythrough the interiitting offset portions and through the opposite end portions of the members, braces engaged by the rods in connecting the opposed pairs of members, said rods extending at their lower ends into the soil to `vhold the form members against displacement. l

2. A form of the class described including opposed pairs of wall members, said members having interiitting end portions offset laterally, adjustable connecting strips mounted on the opposed pairs of members, rods vextending through said strips Iand through the members ttor holding said members to the ground and for connecting the intertitting portions.

3. A form of the class described including opposed pairs of members constituting the side ,walls of the form, the members of each pair 'having oiiset intertting portions, rods extending downwardly through said intertitting portions, additional rods extending through the remote end of the members, all ot said rods projecting at their lower ends in the soil to hold the 'form against movement upon the soil, connecting strips engaged by the rods for holding the opposed pairs of members against relative movement, said strips being adj ustable.

'l. A form of the class described including opposed pairs ot members constituting the side walls of the form, the members of each pair having offset intertting portions, rods extending downwardly .through said interIit-ting portions, additional rods extendinO through the remote ends ot the members, all of said rods projecting at their lower ends in the soil to hold the :form against movement upon the soil, connecting strips engaged by the rods 'for holding the opposed pairs of members against relative movement, said strips being adjustable, wings detachably and adjustably connected to the ends of the opposed walls, means for holding said wings at predetermined angles to the walls.

5. A form of the class described including opposedk pairs of members, .each pair constituting a wall of the form, said wall having slots in its end portions, laterally otlset portions at the inner ends of the members, said portions interlitting., rods extending through said interitting portions to hold them together, rods extending :through the end portions of the walls all of said rods projecting into the surface of the ground on which the'form is mounted, wings at the end of the walls, tongues thereon detachably seated in the slots and adjustable angularly relative to the walls, and adjustable means 'for holding said wings at. predetermined angles relative to the Walls.

In testimony that I claim the 'foregoing as my own, I have hereto aixed my signature.

MARIUS MICKELSON. 

